Showing the performance of VB.NET within Visual Studio 2010

Hi all

I have a small VB.NET application that connects to a SQL database, runs some queries and emails the results.
There are quite a few areas in the code that I know can be streamlined to make the app run faster, however, I'd like to be able to see just how much of an improvement the changes to the code will make.

Can anyone advise how to view the impact on system resources that an application uses when it runs, so that I might see the difference when I change the code?  Also are there any other items that I should be watching for?

I'm using Visual Studio 2010 Professional.
LVL 25
RouchieAsked:
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Dennis AriesConnect With a Mentor CEO @ Arkro ITCommented:
Check out the following articles
http://msdn.microsoft.com/en-us/library/ms998579.aspx - Measuring performance
http://msdn.microsoft.com/en-us/library/ms998581.aspx - Testing performance
http://msdn.microsoft.com/en-us/library/ms998583.aspx - Tuning performance

All part of the Improving .NET Application performance and Scalability (http://msdn.microsoft.com/en-us/library/ff649152.aspx)
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Sarika30Connect With a Mentor Commented:
You can see the CPU usage from the task manager. Under the Processes tab you can see the CPU counter used by the application. You can see the CPU performance under the performance tab.
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joriszwaenepoelConnect With a Mentor Commented:
Usually I use code like this to test the duration of a block of code:

dim start as datetime = datetime.now
' .... do the work here
dim duration = datetime.now.dubtract(start)
debug.writeline("duration: " & duration.totalmilliseconds & " ms")

If the duration is too short to notice the difference, you could use a loop to execute your code 100  or 1000 times.

However, your performance is influenced by other tasks running on your PC, so if you want accurate results, you probably need to test the duration several times.
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mastooConnect With a Mentor Commented:
The above work, but if you are going to do much of this you might look at something like the red-gate ants profiler.  It quickly shows areas to focus on for performance gains.
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